Grades 10-12, often referred to as high school, typically encompass the final three years of secondary education in many countries. Students in these grades are usually aged 15 to 18 and focus on a more specialized curriculum that prepares them for college, vocational training, or the workforce. During these years, students take core subjects such as mathematics, science, English, and social studies, along with elective courses that may include art, music, or foreign languages. Assessments often include standardized tests, and students may also participate in extracurricular activities, which can enhance their college applications.